Plow-foot.



R. B. WILLIAMS.

PLOW FOOT.

APPLICATION HLED APR. 1, 1916.

1,209,095. Patented Dec.19,19l6.

Witnesses Attorneys RUIDIGILLE BURGOYNE WILLIAMS, OF BENTON, TEXAS.

rnounroor.

Specification of Letters Patent. Patented Dec, 19, 1916.

Application filed April 7, 1916. 1 Serial No. 89,620.

To all whom it mag concern: I

Be it known that I, RUDICILLE B. WIL- LIAMS, a citizen of the UnitedStates, residing atDenton, in the county of Denton and State of Texas,have invented a new and useful Plow-Foot, of which the following is aspecification.

This invention relates to improvements in a plow or cultivator foot ofthat type designed to yield rearwardly when the point of the soilengaging device comes against an unyieldin obstruction.

One of 1e objects of the present invention is to provide means wherebythe foot can be quickly adjusted 'angularly without requiring the use ofany tool in order to loosen any of the parts, the means employed forholding the foot being simple, durable and efiicient and readilyshlftable, the parts, however, being so constructed as not to moveaccidentally out of the positions to which they are adjusted.

With the foregoing and other objects in view which will appear as. thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, can be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the accompanying drawings the preferred form of the invention hasbeen shown.

In said drawings, Figure 1 is aside elevation of the device. Fig. 2 is asection on line AB Fig. 1. Fig. 3 is a section on line CD Fig. 2. Fig.-4 is a section on line EF Fig. 3.

Referring to the figures by characters of reference '1 designates astandard having a rearwardly extending arm 2 provided with 7 an opening3 in which is slidably mounted a stem 4 provided with a nut 5 at itsupper end and which nut constitutes an abutment for one end of a coiledspring 6. One end of this spring bears against the nut, while the otherend bears against arm 2, the spring thus exerting a constant upwardthrust against the nut so as to yieldingly support the stem.

links by a transverse pin 22.

Extending rearwardly from the standard 1 close-to and under the arm 2 isa web 7 through which extends a pivot pin 8 having links 9 pivotallymounted therein. Another pin 10 extends into the links and constitutesmeans for pivotally connecting to the links a plate 11 from whichprojects an upwardly extending arcuate arm 12 having an arcuate slot'13. This arm has its side faces con verging upwardly, thus toconstitute a wedge 14 and extending through the arouate' slot 13 is abolt 15 which projects through the outer end portions of the links 9 andthrough washers 16 which are interposed between the links and the sidesof the plate 1. Bolt 15 also projects through longitudinal slots 17formed in links 18 which are extended along the outside of the links 9and are pivotally connected, as by means of a bolt 19, to the upper endof a foot 20. This foot is pivotally connected to the lower 'end' ofstandard 1 by a bolt 21.

The lower end of stem 4 is arranged between the links 9 and is connectedto said A spring 23 straddles and extends under the plate 11 so as tosupport said plate, the

sides of this spring being coiled about the pin 10, while the terminalsof the spring are hooked into engagement with the pin 8.

Thusthe spring constitutes a yielding support for the plate 11 andexerts a constant upward pressure a'gainst'saidplate.

The outer face of each link 18 hastransverse serrations as shown at 24'and washers 25 are arranged outside of the links 18 and are likewiseprovided with serrated faces 26 designed to engage the serrations 24.Bolt 15 extends through the washers so as to hold them properlyassembled with the links 18 and in order that the washers may beprevented from rotating on the bolt, each of them has an angular boss orextension 27 which projects into the adjacent slot 17, as shownparticularly in Fig. 4. 7

It will be noted that plate 11 has a nose 28 extending rearwardlytherefrom and which constitutes a finger piece whereby said plate can bepressed downwardly against the action of spring 23 when it is desired toadjust the parts.

It will be apparent that the wedge 14 is normally pressed upwardlybetween the washers 16 and thus serves to force the washers away fromeach other and against the links 9, with the result that said links willhold the serrated faces 24': of the links. 18 in engagement with thewashers 25. Consequently longitudinal movement of the links 18 isprevented and, therefore, the

foot 20 will be held at a predetermined I caused by an unyielding objectin the path thereof.

Should it be desired to adjust the foot to a different angle relative tothe standard 1, it would merely be necessary to press downwardly on theplate 11 thus to withdraw the wedge from between the washers 16. Thelinks 9 and links 18 can then be pressed toward the plate 11, thusdisengaging serrations 24L from the washers 25. Consequently the links18 can be shifted longitudinally to adjust the foot 20 to the desiredangle after which, by releasing the,

plate 11, spring 23 will shift said plate upwardly automatically andcause the wedge 14 to enter between the washers 16 and thrust themapart, with the result that the serrations 24 will be forced intoengagement with the serrated washers 25 and be held in such position,thus locking the foot against further movement relative to the standard.

Obviously by providing a structure such as described, a very quick andaccurate adjustment can be effected and it becomes unnecessary toutilize a wrench o r-other tool in order to shift the parts relative toeach other.

What is claimed is I 1 .1. The combination with a standard, a footpivotally connected thereto, and yieldingly' supported links extendingfrom the standard, of a' spreading element movably mounted between thelinks, links pivotally connected to the foot and extending along theouter sides of the first named links and having longitudinal slots,means connected to the first named links for engaging and fastening theslotted links tohold them against movement relative to the yieldinglysupported links, and means for exerting a yieldingpressure 'upon thewedging element to force the slotted links outwardly into .engagementwith the fastening means.

' 2.'The combination with a standard, a

foot pivotallyv connected thereto, and yield- 7 ingly'supportedlinksextending from the standard, of slotted links extending from the footand along the outer sides of the yieldingly supported links, fasteningdevices normally engaging the outer sides of the slotted links,connections between the fastening devices and extending through theyieldingly supported links, and wedging means movably mounted betweenthe yieldingly supported links for pressing the slotted links outwardlyin engagement with the fastening means.

3. The combination with a standard, a foot pivotally connected thereto,and yieldingly supported links extending from the standard, of slottedlinks extending from the foot .and along the outer sides of theyieldingly supported links, fastening devices normallyengaging the outersides of the slotted links, connectionsbetween the fastening devices andextending through the yieldingly supported links, and wedging .meansmovably mounted between theyieldingly supported links for. pressing theslotted links outwardly in engagement with the fastening means, saidwedging means being yieldingly supported.

4. The combination with a standard, a foot pivotallyconnected thereto,and'slotted links extending from the foot,0f yieldingly .supported linksextending from .the standard and between the slotted links, a connectionbetween the yieldingly supported links, said connection projectingthrough the slots, clamping blocks carried by the connection forengaging the outer faces of the slotted links, a wedging elementpivotally mounted between and supported by the yieldingly supportedlinks and slidably mounted on said connection, and means for'yieldinglypressing the wedging element to active position to force the slottedlinks in engagement with the fastening means.

5. The combination with a standard, a foot pivotally connected'thereto,and slotted links extending from the foot and having serrated outerfaces, of" yieldingly sup ported links extending from the standard andbetween the slotted links, a connection between the yieldingly supportedlinks, said connectionextending through the slots,

fastening blocks mounted on the connection and adapted to engage theserrated faces of the slotted links,and spring pressed wedging meansinterposed between the links for holding said slotted links normally inengagement with the fastening'fblocks.

6. The combination with a standard, a foot pivotally connected thereto,and slotted links extending fromlthe foot and having serrated outerfaces, of a yieldingly sup ported link between the slotted links andextending from-the standard, a connection extending through saidinterposed link and through the slots in the serrated links, a wedgingelement pivotally connected to the interposed link and slidably mountedon as my own, I have hereto aflixed my signasaio li cannfiction,fasteningdhloizks upon the ture in the presence of two witnesses. en s 0t e connection an a apte to engage the serrated faces of the slottedlinks, RUDIGH'LE BURGOYNE WILLIAMS and yielding means for holding thewedg- Witnesses: ing element normally in active position. RoBT.CALDWELL,

In testimony that I claim the foregoing ROBT. LEACH. 7

Copies of this patent may be obtained for five cents each, by addressingthe "commissioner of Patents, Washington, D. 0.

